Foldable detection sensor of cable fault accurate positioning instrument

Abstract

The utility model discloses a foldable detection sensor of a cable fault accurate positioning instrument. The foldable detection sensor comprises a first folding rod, a third folding rod and a rapid unfolding mechanism. The lower side of the folding rod I is connected with a folding rod II; a protective shell is arranged at the lower end of the third folding rod, an electromagnetic sensor and a sound wave vibration sensor are arranged in the protective shell, the output ends of the electromagnetic sensor and the sound wave vibration sensor are electrically connected to the input end of the cable fault accurate positioning instrument, and supporting plates are arranged at the lower end of the first folding rod, the upper end and the lower end of the second folding rod and the upper end of the third folding rod. According to the foldable detection sensor of the cable fault accurate positioning instrument, the detection sensor can be folded, the detection sensor can be conveniently stored in the cable fault accurate positioning instrument, the time needed for unfolding the detection sensor is shortened while it is guaranteed that the detection sensor is unfolded firmly, and the foldable detection sensor is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of cable fault accurate locating instruments, in particular to a foldable detection sensor of a cable fault accurate locating instrument. Background Art

[0002] The cable fault locator is used for fast and accurate location of buried power cable insulation fault points and accurate detection of cable burial path and burial depth. As long as the sensor probe of the instrument is in contact with the faulty cable or the nearby cable, the fault distance and direction can be accurately displayed, and the fault location can be quickly and effortlessly determined. At the same time, the acoustic and electrical synchronous receiving and display technology is used to effectively overcome the difficulty of locating the point caused by the noise interference of the fixed-point site environment. In particular, the digital display of the fault distance saves the operator from analyzing and judging the complex waveform, and to a considerable extent replaces the rough distance measurement function of the flash tester. In the existing technology, because the cable fault is accurately located, the fault location can be accurately determined by the instrument. The detection sensor of the fixed-point instrument needs to be as close to the cable as possible when in use. For ease of use, the detection sensor is often equipped with an extension rod, and personnel can hold the long rod to move the position of the detection sensor at a long distance, making the movement of the detection sensor more labor-saving. However, the detection sensor with the extension rod added occupies a larger space, which is inconvenient to store. Even though some detection sensors can be folded, the storage of the detection sensors is relatively simple. However, when the foldable detection sensor is unfolded for use, in order to ensure the firmness of the unfolded detection sensor, a longer operation time is required, which is inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a foldable detection sensor for a cable fault precise locating instrument, which is convenient for storing the detection sensor inside the cable fault precise locating instrument, while ensuring that the detection sensor is firmly unfolded, reducing the time required for unfolding the detection sensor, making the use of the foldable detection sensor more convenient, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable detection sensor for a cable fault accurate location device, comprising a folding rod 1, a folding rod 3 and a quick unfolding mechanism;

[0005] Folding rod 1: Folding rod 2 is connected to its lower side;

[0006] Folding rod three: a protective shell is provided at its lower end, an electromagnetic sensor and an acoustic vibration sensor are respectively provided inside the protective shell, the output ends of the electromagnetic sensor and the acoustic vibration sensor are electrically connected to the input end of the cable fault accurate location instrument, the lower end of the folding rod one, the upper and lower ends of the folding rod two and the upper end of the folding rod three are all provided with support plates, and two adjacent support plates are rotatably connected with a connecting column through a rotating shaft;

[0007] Quick deployment mechanism: respectively arranged inside the folding rod one and the folding rod two, the detection sensor can be folded, which is convenient for the detection sensor to be stored inside the cable fault precise locating instrument. While ensuring that the detection sensor is deployed firmly, the time required for the deployment of the detection sensor is reduced, making the use of the foldable detection sensor more convenient.

[0008] Furthermore, the rapid deployment mechanism includes a torsion spring, which is movably mounted on the outer arc surface of the rotating shaft, and one end of the torsion spring away from the center of the connecting column is fixedly connected to the support plate, and the other end of the torsion spring is fixedly connected to the outer arc surface of the connecting column, thereby providing power for the rapid deployment of the detection sensor.

[0009] Furthermore, the rapid deployment mechanism also includes a first column and a second column, wherein the first column is slidably connected to the inside of the folding rod one, and the second column is slidably connected to the inside of the folding rod two, so that the deployment of the detection sensor is more secure.

[0010] Furthermore, the quick deployment mechanism also includes an internal threaded tube and a rotating ball head. The internal threaded tube is rotatably connected to the upper end of the folding rod one, and the internal threaded tube is threadedly connected to the upper end of the plug column one. The upper end of the internal threaded tube passes through the interior of the folding rod one and is provided with a rotating ball head, which facilitates the movement of the upper and lower positions of the plug column one.

[0011] Furthermore, the rapid deployment mechanism also includes a spring, which is movably mounted on the outer arc surface of the second plug post, the upper end of the spring is fixedly connected to the top plate at the upper end of the second plug post, and the lower end of the spring is fixedly connected to the support plate inside the second folding rod, so as to facilitate the resetting of the second plug post when folding.

[0012] Furthermore, a limiting slide groove is provided on the outer arc surface of the plug column one, and a sliding block at a lower end of the folding rod is vertically slidably connected to the limiting slide groove to limit the rotation of the plug column one.

[0013] Furthermore, the outer arc surface fixing sleeve of the rotating ball head is provided with an anti-slip rubber sleeve to increase the friction force on the surface of the rotating ball head.

[0014] Compared with the prior art, the utility model has the following advantages: the foldable detection sensor of the cable fault accurate location instrument has the following advantages:

[0015] The folding rod one, the folding rod two and the folding rod three are rotated respectively to realize the folding of the detection sensor, reduce the space occupied by the detection sensor, and facilitate the storage of the detection sensor in the cable fault precise locating instrument. When in use, the detection sensor only needs to be taken out from the storage space, and under the torsion force of the torsion spring, the folding rod two and the folding rod three are reset to a vertical state, and then the internal threaded cylinder is rotated to move the plug column down and insert it into the folding rod two, and at the same time, the plug column two is pushed to overcome the elastic force of the spring and move down and insert it into the folding rod three. Under the connection of the plug column one and the plug column two, the angle between the folding rod one, the folding rod two and the folding rod three is limited to complete the unfolding of the detection sensor. The detection sensor can be folded, which is convenient for the storage of the detection sensor in the cable fault precise locating instrument. While ensuring that the detection sensor is unfolded firmly, the time required for the unfolding of the detection sensor is reduced, making the use of the foldable detection sensor more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the front view cross section of the overall device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connecting column of the utility model;

[0019] Figure 4 This is an enlarged structural diagram of the utility model at A;

[0020] Figure 5 This is an enlarged structural diagram of point B of the utility model.

[0021] In the figure: 1 folding rod 1, 2 folding rod 2, 3 folding rod 3, 4 protective shell, 5 support plate, 6 connecting column, 7 rotating shaft, 8 quick deployment mechanism, 81 torsion spring, 82 plug column 1, 83 plug column 2, 84 internal threaded cylinder, 85 rotating ball head, 86 spring, 9 electromagnetic sensor, 10 sonic vibration sensor, 11 limit slide groove, 12 anti-slip rubber sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5, This embodiment provides a technical solution: a foldable detection sensor for a cable fault accurate location device, comprising a folding rod 1, a folding rod 3 and a quick deployment mechanism 8;

[0024] Folding rod 1: Folding rod 2 2 is connected to its lower side to facilitate remote movement of the position of the detection component;

[0025] Folding rod three 3: a protective shell 4 is provided at its lower end, an electromagnetic sensor 9 and an acoustic vibration sensor 10 are respectively provided inside the protective shell 4, the output ends of the electromagnetic sensor 9 and the acoustic vibration sensor 10 are electrically connected to the input end of the cable fault accurate location instrument, and the cable fault position is detected. A support plate 5 is provided at the lower end of the folding rod one 1, the upper and lower ends of the folding rod two 2 and the upper end of the folding rod three 3, and two adjacent support plates 5 are rotatably connected with a connecting column 6 through a rotating shaft 7. Through the relative rotation of the support plate 5 and the connecting column 6, the angle between the folding rod one 1, the folding rod two 2 and the folding rod three 3 is changed to realize the folding of the detection sensor;

[0026] The quick deployment mechanism 8 is respectively arranged inside the folding rod 1 and the folding rod 2. The quick deployment mechanism 8 includes a torsion spring 81, which is movably sleeved on the outer arc surface of the rotating shaft 7. One end of the torsion spring 81 away from the center of the connecting column 6 is fixedly connected to the support plate 5, and the other end of the torsion spring 81 is fixedly connected to the outer arc surface of the connecting column 6. When the detection sensor is in the folded state, the torsion spring 81 is in a torsion state. When the detection sensor leaves the storage space, the folding rod 2 2 and the folding rod 3 3 are quickly reset to the vertical state under the torsion force of the torsion spring 81. The quick deployment mechanism 8 also includes a plug-in column 1 82 and a plug-in column 2 83. The plug-in column 1 82 is slidably connected to the inside of the folding rod 1 1, and the plug-in column 2 83 is slidably connected to the inside of the folding rod 2 2. By moving the plug-in column 1 82 downward and inserting it into the inside of the folding rod 2 2, and the plug-in column 2 83 is moved downward and inserted into the inside of the folding rod 3 3, the angles between the folding rod 1 1, the folding rod 2 2 and the folding rod 3 3 are firmly limited, and the quick deployment mechanism 8 is realized. The opening mechanism 8 also includes an internal threaded tube 84 and a rotating ball head 85. The internal threaded tube 84 is rotatably connected to the upper end of the folding rod 1. The internal threaded tube 84 is threadedly connected to the upper end of the plug post 82. The upper end of the internal threaded tube 84 passes through the interior of the folding rod 1 and is provided with a rotating ball head 85, which is convenient for moving the upper and lower positions of the plug post 82. The quick deployment mechanism 8 also includes a spring 86, which is movably sleeved on the outer arc surface of the plug post 83. The upper end of the spring 86 is connected to the upper end of the plug post 83. The top plate at the end is fixedly connected, and the lower end of the spring 86 is fixedly connected to the support plate inside the folding rod 2. When folding is required, it is convenient for the automatic resetting of the plug column 83. The outer arc surface of the plug column 82 is provided with a limiting slide groove 11, and the slider at the lower end of the folding rod 1 is vertically slidably connected with the limiting slide groove 11 to limit the rotation of the plug column 82. The outer arc surface fixing sleeve of the rotating ball head 85 is provided with an anti-slip rubber sleeve 12 to increase the friction force on the surface of the rotating ball head 85, which is convenient for people to grasp.

[0027] The working principle of the foldable detection sensor of the cable fault accurate locating instrument provided by the utility model is as follows: when the detection sensor needs to be stored, the folding rod 1, the folding rod 2 and the folding rod 3 are rotated respectively to realize the folding of the detection sensor. At this time, the torsion spring 81 is twisted to generate torque, which reduces the space occupied by the detection sensor and facilitates the storage of the detection sensor in the cable fault accurate locating instrument. When in use, it is only necessary to take out the detection sensor from the storage space, hold the folding rod 1, and under the torsion of the torsion spring 81, the folding rod 2 and the folding rod 3 3 are reset to a vertical state, and then the internal threaded cylinder 84 is rotated by rotating the ball head 85 to rotate the limit slide groove 11 and the folding rod 1 The slider at the end cooperates to limit the rotation of the plug post 82, and the threaded connection between the internal threaded tube 84 and the plug post 82 drives the plug post 82 to move downward. The plug post 82 passes through the yield hole in the middle of the connecting column 6 and is inserted into the folding rod 2 2, and a downward thrust is applied to the upper end of the plug post 2 83, pushing the plug post 2 83 to overcome the elastic force of the spring 86 and move downward, so that the lower end of the plug post 2 83 is inserted into the folding rod 3 3. Under the connection between the plug post 1 82 and the plug post 2 83, the angles between the folding rod 1 1, the folding rod 2 2 and the folding rod 3 3 are firmly restricted, so that the unfolding of the foldable detection sensor is faster and firmer, and then the electromagnetic sensor 9 and the acoustic vibration sensor 10 are used to detect the cable fault location.

[0028] It is worth noting that the electromagnetic sensor 9 and the acoustic wave vibration sensor 10 disclosed in the above embodiments can be freely configured according to the actual application scenario. The electromagnetic sensor 9 can use the NS-130A500 model electromagnetic wave sensor, and the acoustic wave vibration sensor 10 can use the US-100 model acoustic wave vibration sensor. The external control switch controls the operation of the electromagnetic sensor 9 and the acoustic wave vibration sensor 10 using the methods commonly used in the prior art.

[0029] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A foldable detection sensor for accurately locating cable faults, characterized in that: It comprises a folding rod one (1), a folding rod three (3) and a quick unfolding mechanism (8); Folding rod one (1): the lower side of which is connected to folding rod two (2); Folding rod three (3): a protective shell (4) is provided at its lower end, an electromagnetic sensor (9) and an acoustic vibration sensor (10) are provided inside the protective shell (4), the output ends of the electromagnetic sensor (9) and the acoustic vibration sensor (10) are both electrically connected to the input end of the cable fault accurate location device, the lower end of the folding rod one (1), the upper and lower ends of the folding rod two (2) and the upper end of the folding rod three (3) are all provided with support plates (5), and two adjacent support plates (5) are rotatably connected to each other by a connecting column (6) via a rotating shaft (7); Quick unfolding mechanism (8): respectively arranged inside the folding rod 1 (1) and the folding rod 2 (2).

2. The foldable detection sensor of a cable fault accurate location device according to claim 1 is characterized in that: The rapid deployment mechanism (8) comprises a torsion spring (81), wherein the torsion spring (81) is movably sleeved on the outer arc surface of the rotating shaft (7), one end of the torsion spring (81) away from the center of the connecting column (6) is fixedly connected to the support plate (5), and the other end of the torsion spring (81) is fixedly connected to the outer arc surface of the connecting column (6).

3. The foldable detection sensor of the cable fault accurate location device according to claim 1 is characterized by: The rapid deployment mechanism (8) further comprises a first plug post (82) and a second plug post (83), wherein the first plug post (82) is slidably connected to the interior of the first folding rod (1), and the second plug post (83) is slidably connected to the interior of the second folding rod (2).

4. The foldable detection sensor of the cable fault accurate location device according to claim 3 is characterized by: The quick deployment mechanism (8) further comprises an internal threaded tube (84) and a rotating ball head (85), wherein the internal threaded tube (84) is rotatably connected to the upper end of the folding rod (1), the internal threaded tube (84) is threadedly connected to the upper end of the plug post (82), and the upper end of the internal threaded tube (84) passes through the interior of the folding rod (1) and is provided with a rotating ball head (85).

5. The foldable detection sensor for accurately locating a cable fault according to claim 3 is characterized by: The quick deployment mechanism (8) further comprises a spring (86), wherein the spring (86) is movably sleeved on the outer arc surface of the second plug post (83), the upper end of the spring (86) is fixedly connected to the top plate at the upper end of the second plug post (83), and the lower end of the spring (86) is fixedly connected to the support plate inside the second folding rod (2).

6. The foldable detection sensor of the cable fault accurate location device according to claim 3 is characterized by: The outer arc surface of the plug post 1 (82) is provided with a limiting slide groove (11), and the sliding block at the lower end of the folding rod 1 (1) is vertically slidably connected to the limiting slide groove (11).

7. The foldable detection sensor of the cable fault accurate location device according to claim 4 is characterized by: The outer arc surface fixing sleeve of the rotating ball head (85) is provided with an anti-slip rubber sleeve (12).

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